From 2664c8bf578963cfed92be590775aca039e74f6c Mon Sep 17 00:00:00 2001
From: Alex Thomae <git@alex.thom.ae>
Date: Fri, 6 Sep 2019 13:09:57 +0200
Subject: [PATCH] Update to Debian Buster

* switches to the `debian:buster` image
* makes sure all the `RUN` commands are executed in one shot
* adds environment variables needed for apt
---
 Dockerfile | 28 +++++++++++++++-------------
 1 file changed, 15 insertions(+), 13 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index a45a96d..5c86833 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,30 +1,32 @@
-FROM debian:8
+FROM debian:buster
 
 MAINTAINER confirm IT solutions, dbarton
 
 #
-# Add user.
+# Ensure the correct variables are set for APT
 #
 
-RUN \
-    groupadd -g 666 mybackup && \
-    useradd -u 666 -g 666 -d /backup -c "MySQL Backup User" mybackup
+ENV DEBIAN_FRONTEND=noninteractive TERM=linux
 
 #
-# Install required packages.
+# Install start script.
 #
 
-RUN \
-    apt-get -y update && \
-    apt-get -y install mydumper && \
-    rm -rf /var/lib/apt/lists/*
+COPY init.sh /init.sh
 
 #
-# Install start script.
+# Add user and install required packages.
 #
 
-COPY init.sh /init.sh
-RUN chmod 750 /init.sh
+RUN \
+    groupadd -g 666 mybackup && \
+    useradd -u 666 -g 666 -d /backup -c "MySQL Backup User" mybackup && \
+    apt-get -y update && \
+    apt-get -y install mydumper && \
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* && \
+    find /var/log -type f | while read f; do echo -ne '' > $f; done && \
+    chmod 750 /init.sh
 
 #
 # Set container settings.